Watermelon is best consumed right after you cut it, but that's not always possible. If you need to save it for later, that's perfectly fine, but it needs to be stored properly. Here's an easy way ...

In a large mixing bowl, mix together the melon, tomatoes, feta and finely chopped chilli. Squeeze the lemon juice in and miz around a little so everything is coated. Assemble between two serving ...